Cove Dishwasher Error Code 900153

Error code 900153 means the Master Control Module has detected that the User Interface Module is running firmware that is not compatible with it. The MCM performs a firmware version check during communication with the UIM, and when the versions do not match, it stops normal operation and displays this code. The first recommended step is replacing the UIM assembly with a compatible unit.

A simple reset will not clear error 900153 because the fault is caused by a genuine firmware incompatibility between the MCM and UIM, not a temporary communication glitch. Each time the MCM attempts to communicate with the UIM and detects the mismatch, it will re-trigger the error. The underlying hardware or firmware issue must be resolved before the error will clear.

Repair costs will depend on the price of the replacement UIM assembly and any applicable labor charges. Parts costs for a dishwasher UIM assembly can range from roughly $80 to $250 or more depending on availability and sourcing. With professional labor, total repair costs typically fall in the range of $150 to $400. Getting a quote from a certified technician familiar with Cove appliances is advisable.

The fix for this error involves replacing the UIM assembly, which requires disconnecting the dishwasher from power and accessing the control panel components. A technician is recommended for this repair, though experienced DIYers who are comfortable working with appliance control boards may be able to complete it. It is important to ensure the replacement UIM carries firmware compatible with the installed MCM.

When error 900153 is active, the dishwasher is typically not able to operate normally because the MCM and UIM cannot communicate correctly. Attempting to force operation in this state is not recommended, as the control system cannot reliably manage cycle functions. The dishwasher should remain unused until the UIM compatibility issue is resolved.